Description: Exception generating new chunk

java.lang.NullPointerException: Exception generating new chunk
	at ati.f(SourceFile:86)
	at ath.c(SourceFile:232)
	at ail.<init>(SourceFile:234)
	at ath.<init>(SourceFile:35)
	at ath.<init>(SourceFile:39)
	at ati.<init>(SourceFile:50)
	at cia$a.a(SourceFile:97)
	at cit.a(SourceFile:73)
	at cir.a(SourceFile:66)
	at cep.a(SourceFile:69)
	at cag.a(SourceFile:36)
	at cgz.a(SourceFile:85)
	at cgz$$Lambda$3130/1156570187.accept(Unknown Source)
	at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at cgz.a(SourceFile:84)
	at cgb.a(SourceFile:35)
	at cao.a(SourceFile:20)
	at cao.a(SourceFile:13)
	at cag.a(SourceFile:36)
	at bij.a(SourceFile:385)
	at bxd.a(SourceFile:126)
	at bxh.c(SourceFile:83)
	at bxh$$Lambda$1096/1628035200.doWork(Unknown Source)
	at bxh.a(SourceFile:217)
	at uu.a(SourceFile:540)
	at uu$$Lambda$2624/583479764.apply(Unknown Source)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at uu.a(SourceFile:534)
	at uu$$Lambda$2621/45136637.apply(Unknown Source)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
	at uw.b(SourceFile:57)
	at uw$$Lambda$2599/286205772.run(Unknown Source)
	at agq.e(SourceFile:83)
	at agq.a(SourceFile:123)
	at agq.run(SourceFile:91)
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)